TY  - BOOK
AU  - Sen,Nani Lal
TI  - A critique of the theories of viparyaya / 
U1  - 121 
PY  - 1965///
CY  - Kolkata : 
PB  - Rabindra Bharati University , 
KW  - KNOWLEDGE, THEORY OF
N1  - NULL
ER  -